There's no need to ever feel left out again at the water cooler conversation. Here's a rundown of the stories currently trending in the world, the country and your backyard.

Yahoo

Loud music murder: Closing arguments are set for Wednesday in the trial of a Florida man accused of shooting and killing a teenager in an argument over loud music. Michael Dunn is on trial for first-degree murder in the death of Jordan Davis, 17, after he shot into a car in which the teen was sitting. Davis said he fired in self-defense after getting into an argument with a group of young men in a Jacksonville convenience store parking lot in 2012. Full story: The Associated Press

Brokaw has cancer: Former NBC Nightly News anchor Tom Brokaw announced Tuesday that he has been diagnosed with multiple myeloma, a type of cancer that attacks blood cells in bone marrow. Brokaw, 74, has been given an optimistic prognosis, according to Deborah Turness NBC News president. Brokaw has worked for the network since 1966. Full story: NBC News

Car seat recall: Graco is recalling one of its car seat models over concerns that children can get trapped by buckles that won’t open. The company says the buckles can be difficult to open when they become sticky with spilled food or drinks. The recall is for nearly 3.8 million safety seats, and covers 11 models sold from 2009 through 2013. Full story: The Associated Press

Google

Why the delay: President Barack Obama explained in a press conference Tuesday why the White House decided to delay implementation of part of the Affordable Care Act. According to the president, the delay allows for a “smoothing out” of the transition to the law, giving companies time to adjust to the new regulations. Full story: Politico

New top dog: Sky, a wire fox terrier, took top honors at the famed Westminster Kennel Club championship on Tuesday. Sky outlasted, among others, a bloodhound, an Irish water spaniel, a miniature pinscher and a fluffy, white poodle to win the 138th Westminster show. Full story: The Associated Press

Earthquake hits China: A powerful earthquake has struck a sparsely populated area of China's far western region of Xinjiang. The U.S. Geological Survey said the magnitude-6.8 quake was centered 168 miles east-southeast of Hotan at a depth of 7.7 miles. The China Earthquake Networks Center measured the quake at magnitude 7.3. Full story: The Associated Press

Kevin Grow, for four years the manager of his Bensalem, Pa., high school basketball team, was called on to suit-up and play in the last two games of the team’s season. The team should have called him up earlier -- Kevin sank four 3-point shots in 2 minutes. Tremendous sportsmanship from the kids on both the teams.